package com.lin.springcloudalibaba.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * @author: lin
 * @description:
 * @time: 2021/8/18 11:38
 */
@Service
public class PaymentService {
    /*
    *
    * 正常访问
    *
    * */
    public String paymentInfo_OK(Integer id){
        return "线程池: "+Thread.currentThread().getName()+"paymentInfo_OK,id:"+id+"\t"+"哈哈";
    }
    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",commandProperties = {
            @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",value="3000")
    })
    public String paymentInfo_TimeOut(Integer id){
        int timenumber = 2;
        try {
            TimeUnit.SECONDS.sleep(timenumber);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池: "+Thread.currentThread().getName()+"paymentInfo_TimeOut,id:"+id+"\t"+"耗时"+timenumber+"秒";
    }
    public String paymentInfo_TimeOutHandler(Integer id){
        return "线程池: "+Thread.currentThread().getName()+"paymentInfo_TimeOutHandler,id:"+id+"服务异常请稍后再试\t"+"o(╥﹏╥)o";
    }

    //=========服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),  //是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),  //请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"), //时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),//失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id)
    {
        if(id < 0)
        {
            throw new RuntimeException("******id 不能负数");
        }
        String serialNumber = IdUtil.simpleUUID();

        return Thread.currentThread().getName()+"\t"+"调用成功，流水号: " + serialNumber;
    }
    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id)
    {
        return "id 不能负数，请稍后再试，/(ㄒoㄒ)/~~   id: " +id;
    }





}
